Answer:
b) The data file may be corrupted or missing.
Explanation:
This message generally conveys a problem in loading the saved data which could be caused by the file damage or absence of the file. Though such difficulties as incompatible file formats, permission, or network connection may occur to data retrieval, the given message implies that the problem is with the data file itself, that is, the file is either missing or corrupted.
Therefore, the correct answer choice is b).